Gas-engine governor.



C. WHITE.

GAS ENGINE GOVERNOR.

APPLIUATION FILED NOV. Z7, 1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANOGRIPH C0.. wAsHlNQ'rnN. D. c4

C. WHITE. GAS ENGINE GOVERNOR.

APPLIGATION FILED Nov. 27, 1912.

1 ,O7 1 ,1 93, Patented Aug. 26, 1913.

2 SHEETS-SHEET 2. I y@ UNITED .sTATEs CHARLES WHITE, 0F BALTIMORE, MARYLAND.

`GASENGINE GOVERNOR.

Specification of Letters Patent.

Application filed November 27, 1912. ASerial No,

Patented Aug. 26, 191.3. 733,919.

To all @1J/1,0m t may concern:

Be it known that I, CHARLES WVHrrn, a citizen of the United States, residing at Baltimore, hlaryland, have invented certain new and useful Improvements in Gas-Engine Governors, of which the following is a speciiication.

My governor depends for its opera-tion upon the inertia of a weight, the lag of which at the vend of the stroke in one direction lifting the governor' arm and preventing the opening of the gas supply valve, while at the other end of the stroke the weight is prevented friom relative or swing ing movement by the governor arm finding a bearing on the 4governor block. The weight is carried by a depending arm, and by adjusting this weight substantially hori zontafllly or substantially at right angles to the depending arm, the speed of the engine may be changed.

vThe invention consists in the features and combination and arrangement of parts hereinafter described and particularly set forth in the appended claims.

In the accompanying drawings Figure 1 is a side elevation of a gas engine 4cylinder with my improved governor in place to control the operation of the gas inlet valve; Fig. 2 is an enlarged view of certain of the parts shown in Fig. 1; Fig. 3 is a cross sectional view substantially on the line 3 3 .of Fig. 2; Fig. 4 is a plan view of the engine cylinder with my invention in place; Fig. `5 is a -detail sectional view of the gas valve box with the val-ve in place. Fig. 6 shows views of the weights. Fig. '7 is a detail view of the `depending arm.

In these drawings, 1 is the engine cylinvalve 4 for the by a spring 5.

a block a collar i9 with a friction washer rotated on the valve either the .'hit .and miss .tooth 11 uppermost,

or to bring the Vgraduated teeth 12 upper-` most. These teeth are adapted to "be enby the arm 14 which is rrigidly connected with adepending arm 15 carrying a `weight'- 46. The V.arms 14 and 15 `forni .a governor gas supply Jpipe leading to the Ygas valve, the box or casingiof which i-s indij cated at 3. Viithin the valve box the inletf gas is seated, being pressed i Its stem f6 carries `on `its end 7, being held 'between a collar 8 vand at 10, this construction permitting the block to fbe stem so `as .to bring? lever pivoted at 17 to a bracket 18 which is mounted on the rod 19 which reciprocates alongside of the engine cylinder, said rod being utilized for opening one of the valves of the engine through the lever 20, pivotally mounted at 21. VThe reciprocation of )the rod 19 is derived through any suitable connection between it and the crank shaft of the engi-ne, the sliding rod being guided in `-bearings 22. The arm 14 of the governor lever rests -upon the block 7, finding a firm :bearing thereon, which limits the movement iof the lever and vweight -in one direction. I prefer to make the block 7 with upper and lower channels or grooves 23 adapted in width and dep-th to receive the arm 14 of the governor leve-r, so that one will be sustained by the other, the arm 14, by resting in the groove, 1iliol-ding the block 7 against displacement lor rotation on the valve stem, and the parts being kept in line by this construction. The knife-edge member is seated in a notch -or recess 24 in the upper side yof the lever arm 14, and it is Aheld in this recess by a screw `25. It projects, as shown in Fig. 3, beyond the arm 14 at each side so as to engage the teeth on the 4block .7, which are formed` therein at each side of the `grooves U23. The governing action is due to the inertia .of the weight 116. Supposing the `rod 119 with the governor is on a movement to .the right of Fig. 1, the inertia of the weight at the moment that lthe action `of ythe parts reverses and moves toward the left will keep the arm 14 pressed Admvnwardly upon its bearing surface on `the block 7, and vall pendulum action of the weight under these conditions will be pre` vented. At the end of the leftward movement, when reversal takes place, if the speed is normal the arm 14 will remain down `in .engagement with the Vblock 7, and the knifeedge member will engage the tooth on the block, and thus on the stroke to the right the gas valve will again be operated to supply the gas tothe engine. If, however, the engine has atta-ined la greater speed zthan that for which the governor is set, the inertia lof the weight at the moment of reversing the stroke will cause 'the leftward, lift-ing the -arm 14 and thus causing the lmiffe1edge member to ymiss the tooth r11 (if vthe block is adjusted as illustrated), and allowing the gas valve to remain closed during the movement of the governor toarm 15 to `move i ward the right, and reduce the speed of the engine. If the block 7 is turned about the valve stem to bring its series of teeth 12 uppermost, the engine will work on the graduated charge principle, the knife edge 13 engaging either one or the other of the series of teeth (which are at different elevations), and opening the gas supply valve at each movement of the rod 19 and governor to the right, the degree of opening varying, however, in accordance with the demands of a constantly maintained uniform speed, such, for instance, where the engine is under a constant load as in running a generator for an incandescent circuit.

It will be noticed that the governor weight has no swinging movementat the end of the stroke to the right, the arm 111, as before stated, preventing this by nding a bearing on the block 7. My governor is distinguished in this respect from pendulum governors in which a swinging movement takes place on the reversal of the stroke in either direction, giving rise to inaccuracies in the governing action.

In order to secure the effect above described of preventing a pendulum like motion of the governor lever in one direction from its normal position it will be understood that the horizontal stroke of the end of the horizontal arm 141 of the governor lever is such that in both its engaged and disengaged positions the governor lever will be supported against movement in one direction, this being due to the horizontal arm resting on the block 7, which block in effect is a portion of the valve stem. In the form shown the weight will not at any time swing to the right beyond the position indicated. In action the knife edge of the governor lever will jump over the tooth on the valve stem when the speed rises and it will then fall upon the block 7 and will be supported thereby to'prevent the swinging of the governor lever and weight. Supported in this position the end 'of the governor lever will be ready to slide back into position to engage the tooth of the block 7 when the stroke reverses.

The weight is adjustably mounted on the depending arm 15 of the governor lever. The weight has an opening 24 extending through it vertically which receives the depending arm 15 of the governor lever, and it has also an opening 25 extending horizontally or lengthwise of the weight which receives an adjusting screw 26 having a finger piece 26 at one end and a boss or collar 27 at the other end. The lower end of the arm 15 is tapped to receive the screw, and by turning the screw rod the weight will be adjusted horizont-ally in relation to the governor arm, so that the preponderance of Weight will lie either to one side or the other of the axis 0r center line of the said arm,

the weight being elongated horizontally. No springs of any character are employed. The adjustment of the Weight will cause the arm 14 to bear down o-n the block 7 more or less heavily, and t-he arm will be rendered more or less sensitive to lifting when the reversal of the stroke takes place.

The arms 141 and 15 are connected together to move as one. The depending arm 15, as shown in Fig. 7, is split at its upper end and is clamped to the pivot pin 17, to which also the arm 14E is xed, as shown in Figs. 2 and 4.

Vhat I claim as my invention is:

1. In an engine governor the combination of a pivoted governor lever having a downwardly extending arm with a weight suspended thereon and a horizontally extending arm rigidly connected to the weighted arm and having detachable engagement with the valve stem and means for bodily reciprocating the governor lever horizontally, the end of the said rigidly connected Lhorizontal arm bearing upon a portion of the valve stem in both its engaged and disengaged positions and thereby preventing the weighted arm from swinging in one direction from normal position.

2. In an engine governor the combination of a pivoted governor lever having a downwardly extending arm with a weight suspended thereon and a horizontally extending arm rigidly connected to the weighted arm and having detachable engagement with the valve stem and means for bodily reciprocating the governor lever horizontally, the end of the rigidly connected horizontal arm being supported by a portion of the valve stem in both its engaged and disengaged positions and preventing the weighted arm from swinging in one direction from normal position, the said weight being adjustable across said depending arm and from one side thereof to the other and substantially parallel with the. direction of bodily reciprocation of the governor lever, substantially as described.

3. In combination in an engine governor, a lever pivotally mounted and having a horizontal arm detachably engaging the gas valve stem, and a vertical arm with a weight lying partly on each side thereof and adjustable across said arm from one side to the other, and a screw rod carried by and turnable in the weight, said rod, when turned, moving through the lower end of the vertical arm and carrying the weight with it, substantially ras described.

1. In combination in a gas engine governor, a. block on the valve stem having a hit and miss tooth on one side and a series of graduated teeth on the other, and a governor arm to engage any of said teeth, said block being adjustable to bring either the hhit and miss tooth or the series of graduated teeth into position to be engaged by the arm, substantially as described.

5. In combination in a gas engine governor, a block sWiveled on the valve stem adjustable by turning the same o-n said stem While remaining in Connection therewith, said block having a hit and miss tooth on one side and graduated teeth on the other side, and a governor arm to engage said teeth according to the adjustment of the block7 with means for operating the said arm, substantially as described.

6. In combination With the valve stem, a block having a groove in its face, with teeth above and on each side of the groove, and a governor arm fitted to the said groove and having a knife edge projecting to engage the teeth, With means for lifting the arm from or holding it down in said groove, substantially as described.

In combination a governor block grooved on its upper and lower faces; and having a hit and miss tooth on one face and graduated teeth on the other face, a governor arm fitted to said grooves with means for operating the governor arm, said block being sWiveled on the valve stem to bring either face to coact With the governor arm, substantially as described.

In testimony whereof, I aHX my signature in presence of tWo Witnesses.

CHARLES WHITE.

Witnesses:

RICHARD B. PUE, VICTOR I-I. EDUARD.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, I). C. Y 

